Improvement in rod-couplings



T. D. OULTER. Rod Coupling.

Patented Oct. 9, I877.

fiitnesses Inventor UNITED STATES PATENT OEEIoE.

THEODORE D. OULTER, OF WESTMINSTER, CALIFORNIA.

IMPROVEMENT lN ROD-COUPLINGS.

Specification forming part of Letters Patent No. 195,988, dated October9, 1877; application filed June 14, 1877.

To all whom it may concern:

Be it known that I, THEODORE D. GULTER, of Westminster, county of LosAngeles, and State of California, have invented an ImprovedRod-Coupling; and I do hereby declare the following to be a full, clear,and exact description thereof, reference being had to the accompanyin gdrawings.

My invention relates to an improved cou ling for connecting such rods asare used in boring Artesian wells, and can also be used for connectingother tubes and rods where great strength is required and rapidity inconnecting and disconnecting the pipes or tubes is desirable.

My invention is fully represented in the accompanying drawings, in whichFigures 1 and 2 are views of my device.

My improved coupling consists of two interlocking parts, A B. Each rodor tube O to be connected together I provide with an extension similarto A at one end, and an extension similar to B at its opposite end, so

. that any number of rods can be connected together in the usual mannerof providing rods or tubes with male and female couplings.

The extension A is short bar of metal, which extends from one end ofeach rod or tube 0 to be connected together. This bar has a shoulder orenlargement, 0, formed on it on one side, and its extremity is bent atright angles on the same side, so as to form a hook, D, thus providing arecess between the hook and shoulder, as represented. On the oppositeside of the bar is a shallow shoulder, E, and a band, F, is arranged toslide up and down along the upper part of the bar next to the end of therod, and be stopped by this shallow shoulder E.

The extension B, which extends from the opposite end of the same rod O,or from the end of any other rod which it is desired to connect with therod O, has an enlargement, H, in the center of which is a hole, I. Thishole is just large enough to allow the hook D to enter it. The extremityJ of this bar extends sufiiciently beyond the hole I to fit in therecess between the shoulder c and hook D, and is of equal thickness withthe bar A, so that the band F can be slipped down over the end of theextension B until it rests upon the shoulder E, thus firmly securing theextension B upon the hook of the extension A, and coupling the two rodsor tubes together.

There is no weld except in the band F, which secures the parts inposition when coupled. This band is so made as to slide easily from itssecured position upward, thereby allowing the lower half or part B to beremoved from the upper halt'or part A. The half of the part B is soconstructed, having a slight bend, as represented, as to bring thebearing on a direct line with the bar A.

It will be seen that the elbow or hook is nicely fitted to the hole inthe bar 13, and at the same time makes a neat fit in the recess whenfitted.

It is also designed that the shoulder c and hook or elbow shall equallyshare the weight of whatever may be above them when coupled together,thereby greatly diminishing the wear when pumping or drilling.

When necessary, the band is secured in position by drawing a key througha small hole, 0, in the part A; or a spring could be placed in the sideof the bar for this purpose.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

A rod or tube coupling consisting of the bar or extension A, with itsshoulder c, hook or elbow l), and notch E, in combination with theextension or bar B, with its hole I and extremity J, the two parts beingfitted together as described, and held in place by the band F,substantially as specified.

In witness whereof I have hereunto set my hand and seal.

THEODORE D. OULTER.

Witnesses:

S. H. BUTTERFIELD, J. F. MAR UIs.

